Upper and Lower Bounds - GCSE Higher Maths

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1st Class Maths

Күн бұрын

Пікірлер: 66

@nfn1848 6 ай бұрын

Watching this before tomorrows exam 😭😭

@RiptideGaming_0fficial 6 ай бұрын

Same! Good luck 🤞

@sam-yk8mc 6 ай бұрын

@@RiptideGaming_0fficial you too!

@nfn1848 6 ай бұрын

@@RiptideGaming_0fficial I’m cooked bruhpray rhat the paper is nice

@NethanShewon 6 ай бұрын

Im cooked

@nfn1848 6 ай бұрын

@@NethanShewon how was the paper yooo

@xsiax_0818 8 ай бұрын

revising for my gcse's, and this was very helpful, thanks!

@Rosieeeee936 Ай бұрын

howd it go

@kaed844 7 ай бұрын

I can’t describe how helpful this was since i barely knew anything about LB and UB before watching this clip.Keep going❤❤

@1stClassMaths 7 ай бұрын

You keep going :)

@global_overmatters 11 ай бұрын

You are the best, honestly. I’m so glad I stumbled upon your videos, thank you sm for the free revision resources❤

@1stClassMaths 11 ай бұрын

Glad you find them useful and took the time to comment. You are also the best, keep working hard.

@Beesouppie 10 ай бұрын

ur pfp is cool

@TewoderosSolomon 27 күн бұрын

Wow

@C.H.I.P.S 2 ай бұрын

Watching this before 1hr of my exam 😔

@kikiboo-4839 2 ай бұрын

Watching this 10 mins before the exam I am cooked😭😭

@materialgirly 8 ай бұрын

This was so helpful! I used to always struggle with bounds but now understand it thanks to this!

@1stClassMaths 8 ай бұрын

You're so welcome!

@stephenoldfield7124 2 ай бұрын

@@1stClassMaths WHY ARE YOU MULTIPLYING BY 25 FOR THE MAXIMUM WHEN THE SIDE HAS TO BE LESS THAN 25? wOULDN'T THE MAXIMUM LENGTH BE 24.9?

@AfsarahRashid Ай бұрын

I love this video. It'll help me a lot in my exams

@maryamsiraj1981 Ай бұрын

How is it 25000? 3:26

@yana7066 4 ай бұрын

I cant believe im in y11 it doesnt feel real…

@belugacat4599 2 ай бұрын

You’re the best mate💯💯 thank you for such useful video👍

@Miiiyyyuuu 14 күн бұрын

TYSM I UNDERSTOOD IT SO FAST I HAVE MY EXAM😭✨

@romxsayeppie 28 күн бұрын

best teacher out there

@1stClassMaths 27 күн бұрын

Too kind!

@Fader-kf1is 3 ай бұрын

Hey @ 1st class math- can u please make a video of rules, about nearest decimal place nearest sf and how to find the upper bound nearest with them

@TheMathLab800 4 ай бұрын

I was confused about the maximum area, because your are unable to use 25cm since that inequality doesn't have a line through it?

@maryamsiraj1981 Ай бұрын

What grade r u guys in (I'm in 9th)

@hphai1-e8p Ай бұрын

same

@Pr_xity Ай бұрын

Mate, I'm in Uni this comes in ALOT

@AfsarahRashid Ай бұрын

11th grade

@samuellacobbinah 3 ай бұрын

The practice questions on your website why is it that with money bounds u use lets say 8.49 instead of 8.5 and 1.64 instead of 1.65 for maximum total amount of money?

@1stClassMaths 3 ай бұрын

Hi. With money we cannot actually have an amount of money that falls between £8.49 and £8.50 so in this question the maximum would be £8.49 exactly. I realised that I hadn't explain this sort of thing well in the video and I may also revise some of the questions on it too. For example in Q3 in reality the maximum number of fans is 32499 because they are always integer values. Basically I didn't do a good enough job on this one!

@samuellacobbinah 3 ай бұрын

The question was £8 and was 7.50

@1stClassMaths 3 ай бұрын

Hi yes I know the one you mean. It’s just because money cannot take a value between 8.49 and 8.50 like 8.495 etc isn’t an actual value of money.

@samuellacobbinah 3 ай бұрын

@1stClassMaths Ohkay that makes sense. Thank you very much for the explanation.

@mariahussain7360 6 ай бұрын

Your videos are so helpful. I have a question, why did you multiply 25 with 8.5 for the maximum possibility whereas we know that length's upper bound is less than 24 and widths upper bound is less than 8.5? Please help!

@1stClassMaths 6 ай бұрын

The upper bound is 8.5. An upper bound necessarily a number we can achieve it is just the boundary. We can have any number up to 8.5 so we consider 8.5 the upper bound.

@evgenyzak2035 5 ай бұрын

Note which symbols are used. In lower